.input-val {
	width: 200px;
	height: 32px;
	border: 1px solid #ddd;
	box-sizing: border-box;
  }
  canvas {
	vertical-align: middle;
	box-sizing: border-box;
	border: 1px solid #ddd;
	cursor: pointer;
    position: absolute;
    left: 8px;
    top: 77px;
  }
  #canvasfront{
	  z-index:999
  }
  .btn {
	display: inline;
	margin-top: 20px;
	height: 32px;
	width: 100px;
	font-size: 16px;
  }